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Tsuwa Saki Lighthouse

Fl W 5s🇯🇵Gotō Islands, JPOperational

Location & Light Range

About Tsuwa Saki Lighthouse

The Tsuwa Saki lighthouse is a green, round concrete tower situated on a pile. It stands 119 meters above sea level and features a topmark. This navigational aid emits a single white flash every 3 seconds. Its construction material is concrete, and it is identified by NGA list number 12728 and Admiralty number M5025.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl.W. period 3s
Focal Height
119m
Geographic Range
5NM

Location

City
Gotō Islands
Country
🇯🇵JP
Latitude
33.1617°
Longitude
129.1122°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
round
Tower Color
green
Material
concrete

Structure: PORT (IALA B) Green concrete tower, topmark, on pile

References & Identifiers

Admiralty No.
M5025
NGA No.
12728
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Frequently Asked Questions

How do mariners identify Tsuwa Saki Lighthouse at night?+
Tsuwa Saki displays the characteristic Fl W 5s — 1 white flash every 5 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area.
Which ports and harbors does Tsuwa Saki Lighthouse guide vessels into?+
Tsuwa Saki Lighthouse assists vessels approaching 5 nearby ports. The closest is Aokata at 11 NM to the SSW. Other ports served include Arikawa (11 NM SSW), Enokizu (11 NM SSW), Kata (11 NM SSW), Kozera (11 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tsuwa Saki Lighthouse still active and maintained?+
Yes, Tsuwa Saki Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Tsuwa Saki Lighthouse?+
Tsuwa Saki Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Tsuwa Saki Lighthouse?+
You can track vessels near Tsuwa Saki Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.